many musical instruments use resonance tubes v one closed finish - every brass tools (I think), clarinet, etc. There are also instruments whereby both end are open (flute, pipes) are there any kind of which use 2 closed ends, that is, a resonance tube through nodes at both ends?

I am mindful of the problems which would certainly exist for such an tool - basically not be very loud - yet I am simply curious if anyone to know of any.


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Well, does playing flute-like throughout the optimal of a beer party count? Or, much better put: a jug-player in a country "Jug band" dram his instrument the way.

It"s also your contact whether blocked tools with holes along the size qualify, such together an ocarina. I type of guess: v what you"re in search of is an instrument with an air pocket as the resonance, together opposed to, say, the resonance the a solid xylophone bar. Friend could try taping end the F-holes in a violin :-), or even worse, a trombonist using a plunger mute!


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reply Mar 31 "14 at 19:38
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Carl WitthoftCarl Witthoft
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You don"t clearly state you are trying to find a wind tool so possibly a drum would certainly count. Possibly a snare drum since the snare is on the resonant (non-struck) head or a kettle drum maybe qualifies as a pitched instrument.

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If you are in search of a wind tool in details and Carl Witthoft"s proposal of the ocarina or the jug perform not fit the bill, ns think the answer must be no together you are not leaving lot opportunity come energise the resonant tube or wait pocket.


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edited Apr 2 "14 in ~ 7:05
reply Apr 2 "14 in ~ 5:45
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baldrikbaldrik
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It was currently mentioned by Carl Witthoft, yet I think the ocarina does count, as lengthy as you"re not too hung increase on the resonance chamber being a tube as such. From Wikipedia:

The ocarina, unlike various other vessel flutes, has the unusual top quality of not relying on the pipe length to produce a details tone. Rather the tone is dependency on the proportion of the full surface area of opened holes to the total cubic volume attached by the instrument.<6> This way that, unequal a flute or recorder, sound is created by resonance the the entire cavity and also the location of the holes on one ocarina is mainly irrelevant – their dimension is the most essential factor.

The holes need to be there to allow the air out of course, and also they impact the pitch, yet the mechanism isn"t the very same as because that a flute or recorder through an open up end.


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answer Apr 2 "14 at 7:43
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NathanielNathaniel
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Unlike flutes which have an antinode at the swollen end, reed instruments can have one of two people a node or antinode in ~ the reed end. Clarinets have actually a node, while saxophones have actually an antinode. Reed instruments, however, constantly seem to have actually an antinode at the much end. If one were to build a reed instrument with a node at the far end that had just enough of a hole to enable for a net circulation of air v the instrument, and a node in ~ the reed end, it would generate the same set of harmonics as an instrument through antinodes at both ends.

For the benefit of anyone confused by "node" and also "anti-node", a sound wave consists of a velocity wave and a pressure wave. For the wave to turning back direction, one or the other should flip (flipping both would certainly leave the sound travel in the initial direction). A node flips the velocity wave, if an anti-node flips the press wave.

If a pipe has actually a node at one end and an anti-node at the other, then after one round trip, both pressure and velocity tide will have actually flipped; after a 2nd round trip, they will have actually been flipped back. Because that the wave to get ago to its original state therefore requires two round trips.

If a pipe has anti-nodes in ~ both ends, one round pilgrimage will upper and lower reversal the pressure wave twice without flipping the velocity tide at all. Thus, the wave will get ago to its original state after only one ring trip.

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If one to be to construct a pipe with a node at both ends, one round expedition would flip the velocity wave without flipping the pressure wave at all. The tide would thus get ago to its original state after only one round trip. This wouldn"t yes, really be workable if one used the most common kind of node (a closed pipe end) due to the fact that there would be method of stimulating the wait in a completely closed pipe, however if can be feasible if one or both ends offered a reed or diaphragm.